Seq  uint16
	_    uint16
	_    uint32
	_    uint32
}
type SysvShmDesc struct {
	Perm       SysvIpcPerm
	Segsz      uint32
	Atime      uint32
	Dtime      uint32
	Ctime      uint32
	Cpid       int32
	Lpid       int32
	Nattch     uint32
	Atime_high uint16
	Dtime_high uint16
	Ctime_high uint16
	_          uint16

	Mode uint32
	Seq  uint32
	_    uint32
	_    uint64
	_    uint64
}
type SysvShmDesc struct {
	Perm   SysvIpcPerm
	Atime  int64
	Dtime  int64
	Ctime  int64
	Segsz  uint64
	Cpid   int32
	Lpid   int32
	Nattch uint64
	_      uint64
	_      uint64

	// Set up and fork. This returns immediately in the parent or
	// if there's an error.
	upid, pidfd, err, mapPipe, locked := forkAndExecInChild1(argv0, argv, envv, chroot, dir, attr, sys, pipe)
	if locked {
		runtime_AfterFork()
	}
	if err != 0 {
		return 0, err
	}

	// parent; return PID
	pid = int(upid)
	if sys.PidFD != nil {

func wait4(pid int, wstatus *_C_int, options int, rusage *Rusage) (wpid int, err error) {
	r0, _, e1 := syscall6(abi.FuncPCABI0(libc_wait4_trampoline), uintptr(pid), uintptr(unsafe.Pointer(wstatus)), uintptr(options), uintptr(unsafe.Pointer(rusage)), 0, 0)
	wpid = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

func libc_wait4_trampoline()

func wait4(pid int, wstatus *_C_int, options int, rusage *Rusage) (wpid int, err error) {
	r0, _, e1 := syscall6(abi.FuncPCABI0(libc_wait4_trampoline), uintptr(pid), uintptr(unsafe.Pointer(wstatus)), uintptr(options), uintptr(unsafe.Pointer(rusage)), 0, 0)
	wpid = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

func libc_wait4_trampoline()

func wait4(pid int, wstatus *_C_int, options int, rusage *Rusage) (wpid int, err error) {
	r0, _, e1 := syscall6(abi.FuncPCABI0(libc_wait4_trampoline), uintptr(pid), uintptr(unsafe.Pointer(wstatus)), uintptr(options), uintptr(unsafe.Pointer(rusage)), 0, 0)
	wpid = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return
}

func libc_wait4_trampoline()

	Mode uint32
	_    uint16
	Seq  uint16
	_    uint64
	_    uint64
}
type SysvShmDesc struct {
	Perm   SysvIpcPerm
	Segsz  uint64
	Atime  int64
	Dtime  int64
	Ctime  int64
	Cpid   int32
	Lpid   int32
	Nattch uint64
	_      uint64
	_      uint64

	Mode uint32
	_    uint16
	Seq  uint16
	_    uint64
	_    uint64
}
type SysvShmDesc struct {
	Perm   SysvIpcPerm
	Atime  int64
	Dtime  int64
	Ctime  int64
	Segsz  uint64
	Cpid   int32
	Lpid   int32
	Nattch uint64
	_      uint64
	_      uint64

	_    [0]uint8
	Seq  uint16
	_    uint16
	_    uint64
	_    uint64
}
type SysvShmDesc struct {
	Perm   SysvIpcPerm
	Segsz  uint64
	Atime  int64
	Dtime  int64
	Ctime  int64
	Cpid   int32
	Lpid   int32
	Nattch uint64
	_      uint64
	_      uint64

//sys	Fdatasync(fd int) (err error)
// readdir_r
//sysnb	Getpgid(pid int) (pgid int, err error)

//sys	Getpgrp() (pid int)

//sysnb	Getpid() (pid int)
//sysnb	Getppid() (ppid int)
//sys	Getpriority(which int, who int) (prio int, err error)
//sysnb	Getrusage(who int, rusage *Rusage) (err error)
//sysnb	Getsid(pid int) (sid int, err error)
//sysnb	Kill(pid int, sig Signal) (err error)